Granted Patent
Utility
US 6,566,989 · App. 09/890,123
Contactor
Inventors:
Krister Linnarud, Joakim Wåhrenberg, Arne Axelsson, Mats Johansson, Tomas Baltzer
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Oct 18, 2001
Inventors
Krister Linnarud
Joakim Wåhrenberg
Arne Axelsson
Mats Johansson
Tomas Baltzer
Assignee (at issue)
ABB AB
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.